CXSD61055A step-down DC/DC converter wide 4.5V to 21V input voltage range 2A continuous load current

发表时间：2020-04-09浏览次数：76

目录nP5嘉泰姆

1.产品概述         2.产品特点nP5嘉泰姆
3.应用范围       4.下载产品资料PDF文档 nP5嘉泰姆
5.产品封装图                     6.电路原理图             nP5嘉泰姆
7.功能概述       8.相关产品nP5嘉泰姆

nP5嘉泰姆

一,产品概述(General Description) nP5嘉泰姆

The CXSD61055A is a synchronous step-down DC/DC converter that nP5嘉泰姆

provides wide 4.5V to 21V input voltage range and 2A continuous load current capability.nP5嘉泰姆
The CXSD61055A fault protection includes cycle-by-cycle current limit, nP5嘉泰姆

UVLO, output overvoltage protection and thermal shutdown. The adjustable nP5嘉泰姆

soft-start function prevents inrush current at turn-on. This device uses currentnP5嘉泰姆

mode control scheme which provides fast transient response. Internal compensation function reduces external compensation nP5嘉泰姆

components and simplifies the design process. In shutdown mode, the supplynP5嘉泰姆

current is less than 1μA.nP5嘉泰姆

The CXSD61055A is available in SOT-23-6 package and provides good thermal conductance.nP5嘉泰姆
二.产品特点(Features)nP5嘉泰姆

High Efficiency up to 94%nP5嘉泰姆
Low RDS(ON) Integrated Power MOSFETnP5嘉泰姆
Internal Compensation FunctionnP5嘉泰姆
Wide Input Voltage Range: 4.5V to 21VnP5嘉泰姆
Adjustable Output Voltage from 0.8V to 17.85VnP5嘉泰姆
2A Output CurrentnP5嘉泰姆
Fixed 600KHz Switching FrequencynP5嘉泰姆
Current Mode OperationnP5嘉泰姆
Cycle-by-Cycle Current LimitnP5嘉泰姆
Over-Temperature Protection with Auto RecoverynP5嘉泰姆
Output Overvoltage ProtectionnP5嘉泰姆
Under Voltage LockoutnP5嘉泰姆
<1μA Shutdown CurrentnP5嘉泰姆
SOT-23-6 PackagenP5嘉泰姆
三,应用范围 (Applications)nP5嘉泰姆

STB (Set-Top-Box)nP5嘉泰姆
LCD Display, TVnP5嘉泰姆
Distributed Power SystemnP5嘉泰姆
Networking, XDSL ModemnP5嘉泰姆
四.技术规格书下载（产品PDF）nP5嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！nP5嘉泰姆

QQ截图20160419174301.jpg nP5嘉泰姆

五,产品封装图 (Package)nP5嘉泰姆

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I/OnP5嘉泰姆	Pin NamenP5嘉泰姆	Pin No.nP5嘉泰姆	Pin FunctionnP5嘉泰姆
InP5嘉泰姆	FBnP5嘉泰姆	3nP5嘉泰姆	Voltage Feedback Input Pin. Connect FB and VOUT with a resistive voltage divider. This ICnP5嘉泰姆 senses feedback voltage via FB and regulates it at 0.8V.nP5嘉泰姆
InP5嘉泰姆	VINnP5嘉泰姆	5nP5嘉泰姆	Power Supply Input Pin. Drive VIN pin by 4.5V to 21V voltage to power on the chip.nP5嘉泰姆
InP5嘉泰姆		4nP5嘉泰姆	Enable Input Pin. This pin is a digital control input which turns the converter on or off. Connect tonP5嘉泰姆 VIN with a 100kΩ resistor for self-startup.nP5嘉泰姆
InP5嘉泰姆	GNDnP5嘉泰姆	2nP5嘉泰姆	Ground Pin.nP5嘉泰姆
OnP5嘉泰姆	LXnP5嘉泰姆	6nP5嘉泰姆	Power Switching Output. LX is the output of the internal high side NMOS switch.nP5嘉泰姆
OnP5嘉泰姆	BSTnP5嘉泰姆	1nP5嘉泰姆	High Side Gate Drive Boost Pin. A capacitor rating between 10nF~100nF must be connected fromnP5嘉泰姆 this pin to LX. It can boost the gate drive to fully turn on the internal high side NMOS.nP5嘉泰姆

六.电路原理图nP5嘉泰姆

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VOUTnP5嘉泰姆	C1nP5嘉泰姆	R1nP5嘉泰姆	R2nP5嘉泰姆	C9nP5嘉泰姆	C4nP5嘉泰姆	L1nP5嘉泰姆	C2nP5嘉泰姆
1.2VnP5嘉泰姆	10μF MLCC x2nP5嘉泰姆	4.99kΩnP5嘉泰姆	10kΩnP5嘉泰姆	--nP5嘉泰姆	200pF~1nFnP5嘉泰姆	2.2μHnP5嘉泰姆	22μF MLCC x2nP5嘉泰姆
1.8VnP5嘉泰姆	10μF MLCC x2nP5嘉泰姆	4.99kΩnP5嘉泰姆	3.92kΩnP5嘉泰姆	--nP5嘉泰姆	200pF~1nFnP5嘉泰姆	2.2μHnP5嘉泰姆	22μF MLCC x2nP5嘉泰姆
2.5VnP5嘉泰姆	10μF MLCC x2nP5嘉泰姆	4.99kΩnP5嘉泰姆	2.32kΩnP5嘉泰姆	--nP5嘉泰姆	200pF~1nFnP5嘉泰姆	4.7μHnP5嘉泰姆	22μF MLCC x2nP5嘉泰姆
3.3VnP5嘉泰姆	10μF MLCC x2nP5嘉泰姆	30.9kΩnP5嘉泰姆	9.76kΩnP5嘉泰姆	--nP5嘉泰姆	200pF~1nFnP5嘉泰姆	4.7μHnP5嘉泰姆	22μF MLCC x2nP5嘉泰姆
5VnP5嘉泰姆	10μF MLCC x2nP5嘉泰姆	30.9kΩnP5嘉泰姆	5.76kΩnP5嘉泰姆	--nP5嘉泰姆	200pF~1nFnP5嘉泰姆	4.7μHnP5嘉泰姆	22μF MLCC x2nP5嘉泰姆
1.2VnP5嘉泰姆	100μF EC x1nP5嘉泰姆	4.99kΩnP5嘉泰姆	10kΩnP5嘉泰姆	0.1μFnP5嘉泰姆	--nP5嘉泰姆	2.2μHnP5嘉泰姆	100μF EC x1nP5嘉泰姆
1.8VnP5嘉泰姆	100μF EC x1nP5嘉泰姆	4.99kΩnP5嘉泰姆	3.92kΩnP5嘉泰姆	0.1μFnP5嘉泰姆	--nP5嘉泰姆	2.2μHnP5嘉泰姆	100μF EC x1nP5嘉泰姆
2.5VnP5嘉泰姆	100μF EC x1nP5嘉泰姆	4.99kΩnP5嘉泰姆	2.32kΩnP5嘉泰姆	0.1μFnP5嘉泰姆	--nP5嘉泰姆	4.7μHnP5嘉泰姆	100μF EC x1nP5嘉泰姆
3.3VnP5嘉泰姆	100μF EC x1nP5嘉泰姆	30.9kΩnP5嘉泰姆	9.76kΩnP5嘉泰姆	0.1μFnP5嘉泰姆	--nP5嘉泰姆	4.7μHnP5嘉泰姆	100μF EC x1nP5嘉泰姆
5VnP5嘉泰姆	100μF EC x1nP5嘉泰姆	30.9kΩnP5嘉泰姆	5.76kΩnP5嘉泰姆	0.1μFnP5嘉泰姆	--nP5嘉泰姆	4.7μHnP5嘉泰姆	100μF EC x1nP5嘉泰姆

七,功能概述nP5嘉泰姆

Absolute Maximum Ratings (Note 1)nP5嘉泰姆

● Supply Voltage VIN ----------------------------------------------------------------------------- -0.3V to +23VnP5嘉泰姆

● Enable Voltage SH------------------------------------------------------------------------ -0.3V to +23VnP5嘉泰姆

● LX Voltage VLX (50ns) ---------------------------------------------------------------------- -1V to VIN+0.3VnP5嘉泰姆
● BST Pin Voltage VBST ----------------------------------------------------------------------- VLX-0.3V to VLX+6VnP5嘉泰姆
● All Other Pins Voltage -------------------------------------------------------------------------- -0.3V to +6VnP5嘉泰姆
● Maximum Junction Temperature (TJ) ---------------------------------------------------- +150°CnP5嘉泰姆
● Storage Temperature (TS) -------------------------------------------------------------------- -65°C to +150°CnP5嘉泰姆
● Lead Temperature (Soldering, 10sec.) --------------------------------------------------- +260°CnP5嘉泰姆
● Package Thermal Resistance, (θJA) SOT-23-6 ------------------------------------------------ +250°C/WnP5嘉泰姆
● Package Thermal Resistance, (θJC) SOT-23-6 ---------------------------------------------------- +110°C/WnP5嘉泰姆
八,相关芯片选择指南 更多同类产品......nP5嘉泰姆

高压同步DC-DC降压ICnP5嘉泰姆
型号nP5嘉泰姆	输入耐压nP5嘉泰姆	输出电压nP5嘉泰姆	输出电流nP5嘉泰姆	反馈电压nP5嘉泰姆	工作频率nP5嘉泰姆	效率nP5嘉泰姆	静态工nP5嘉泰姆作电流nP5嘉泰姆	待机电流nP5嘉泰姆	封装nP5嘉泰姆
CXSD61049nP5嘉泰姆	8V-35VnP5嘉泰姆	可调输出nP5嘉泰姆带线损补偿nP5嘉泰姆	2A/带可调恒流设置nP5嘉泰姆	1.21VnP5嘉泰姆	130KnP5嘉泰姆	95%nP5嘉泰姆	1.3mAnP5嘉泰姆	112uAnP5嘉泰姆	SOP-8nP5嘉泰姆
CXSD61050nP5嘉泰姆	8V-35VnP5嘉泰姆	可调输出/带线损nP5嘉泰姆补偿带使能端nP5嘉泰姆	2A/带可调恒流设置nP5嘉泰姆	1.21VnP5嘉泰姆	130KnP5嘉泰姆	93%nP5嘉泰姆	1.3mAnP5嘉泰姆		SOP-8nP5嘉泰姆
CXSD61046nP5嘉泰姆	4.5-20VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0AnP5嘉泰姆	0.923VnP5嘉泰姆	340KnP5嘉泰姆	95%nP5嘉泰姆	1mAnP5嘉泰姆	6uAnP5嘉泰姆	SOP-8nP5嘉泰姆
CXSD61046A/BnP5嘉泰姆	4.5-27VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0A/2.5AnP5嘉泰姆	0.925VnP5嘉泰姆	340KnP5嘉泰姆	96%nP5嘉泰姆	1.3mAnP5嘉泰姆	0.3uAnP5嘉泰姆	SOP-8nP5嘉泰姆
CXSD61048nP5嘉泰姆	8V--35VnP5嘉泰姆	可调输出nP5嘉泰姆带线损补偿nP5嘉泰姆	2.0A/带可调限流保护nP5嘉泰姆	1.2VnP5嘉泰姆	100-500KnP5嘉泰姆	93%nP5嘉泰姆	750uAnP5嘉泰姆	110uAnP5嘉泰姆	ESOP-8nP5嘉泰姆
CXSD61048AnP5嘉泰姆	10V--35VnP5嘉泰姆	可调输出nP5嘉泰姆带线损补偿nP5嘉泰姆	2.5A/带可调限流保护nP5嘉泰姆	1.2VnP5嘉泰姆	100-500K可调nP5嘉泰姆	93%nP5嘉泰姆	15mAnP5嘉泰姆	110uAnP5嘉泰姆	SOP-8nP5嘉泰姆
CXSD61048BnP5嘉泰姆	8V-35VnP5嘉泰姆	可调输出nP5嘉泰姆带线损补偿nP5嘉泰姆	2.8A/带可调限流保护nP5嘉泰姆	1.21VnP5嘉泰姆	100-500K可调nP5嘉泰姆	93%nP5嘉泰姆	15mAnP5嘉泰姆	110uAnP5嘉泰姆	SOP-8nP5嘉泰姆
CXSD61048CnP5嘉泰姆	8V-35VnP5嘉泰姆	可调输出nP5嘉泰姆带线损补偿nP5嘉泰姆	3.2A/带可调限流保护nP5嘉泰姆	1.21VnP5嘉泰姆	100-500K可调nP5嘉泰姆	93%nP5嘉泰姆	15mAnP5嘉泰姆	110uAnP5嘉泰姆	SOP-8nP5嘉泰姆
CXSD61047nP5嘉泰姆	4.6-22VnP5嘉泰姆	可调输出nP5嘉泰姆	3.0AnP5嘉泰姆	0.923VnP5嘉泰姆	340KnP5嘉泰姆	95%nP5嘉泰姆	55uAnP5嘉泰姆	1uAnP5嘉泰姆	ESOP8nP5嘉泰姆
CXSD61047AnP5嘉泰姆	4.5-27VnP5嘉泰姆	可调输出nP5嘉泰姆	3.0AnP5嘉泰姆	0.925VnP5嘉泰姆	340KnP5嘉泰姆	93%nP5嘉泰姆	1.3mAnP5嘉泰姆	0.3uAnP5嘉泰姆	ESOP8nP5嘉泰姆
CXSD61047BnP5嘉泰姆	4.5V-23VnP5嘉泰姆	可调输出nP5嘉泰姆	3.5AnP5嘉泰姆	0.925VnP5嘉泰姆	340KnP5嘉泰姆	96%nP5嘉泰姆	2.5mAnP5嘉泰姆		ESOP-8nP5嘉泰姆
CXSD61051nP5嘉泰姆	8V-35VnP5嘉泰姆	可调输出nP5嘉泰姆带线损补偿nP5嘉泰姆	扩流4.5A带nP5嘉泰姆可调限流保护nP5嘉泰姆	1.21VnP5嘉泰姆	100-500K可调nP5嘉泰姆	95%nP5嘉泰姆	14mAnP5嘉泰姆	100uAnP5嘉泰姆	ESOP8nP5嘉泰姆
CXSD61052nP5嘉泰姆	3.6-40VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0AnP5嘉泰姆	0.8VnP5嘉泰姆	440KnP5嘉泰姆	94%nP5嘉泰姆	74uAnP5嘉泰姆	0.07uAnP5嘉泰姆	ESOP-8nP5嘉泰姆
CXSD61053nP5嘉泰姆	4.5-20VnP5嘉泰姆	可调输出nP5嘉泰姆	4.0AnP5嘉泰姆	0.923VnP5嘉泰姆	340KnP5嘉泰姆	95%nP5嘉泰姆	1.6mAnP5嘉泰姆	6uAnP5嘉泰姆	ESOP8nP5嘉泰姆
CXSD61054nP5嘉泰姆	3.5-23VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0AnP5嘉泰姆	0.6VnP5嘉泰姆	600KnP5嘉泰姆	96%nP5嘉泰姆	400uAnP5嘉泰姆	1uAnP5嘉泰姆	SOT-26nP5嘉泰姆
CXSD61055nP5嘉泰姆	4.5-17VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0AnP5嘉泰姆	0.6VnP5嘉泰姆	600KnP5嘉泰姆	96%nP5嘉泰姆	400uAnP5嘉泰姆	1uAnP5嘉泰姆	SOT-26nP5嘉泰姆
CXSD61055AnP5嘉泰姆	4.5V-23VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0AnP5嘉泰姆	0.8VnP5嘉泰姆	600KnP5嘉泰姆	92%nP5嘉泰姆	800uAnP5嘉泰姆		SOT-26nP5嘉泰姆
CXSD61055BnP5嘉泰姆	3.3-17VnP5嘉泰姆	可调输出nP5嘉泰姆	2.0AnP5嘉泰姆	0.6VnP5嘉泰姆	600KnP5嘉泰姆	96%nP5嘉泰姆	400uAnP5嘉泰姆	4uAnP5嘉泰姆	SOT-26nP5嘉泰姆
CXSD61056nP5嘉泰姆	4.5-26VnP5嘉泰姆	可调输出nP5嘉泰姆	1.2AnP5嘉泰姆	0.8VnP5嘉泰姆	1.4MnP5嘉泰姆	94%nP5嘉泰姆	600uAnP5嘉泰姆	1uAnP5嘉泰姆	SOT-26nP5嘉泰姆
CXSD61057nP5嘉泰姆	4.0-42VnP5嘉泰姆	可调输出nP5嘉泰姆	1.5AnP5嘉泰姆	0.8VnP5嘉泰姆	650KnP5嘉泰姆	91%nP5嘉泰姆	600uAnP5嘉泰姆	6uAnP5嘉泰姆	SOT-26nP5嘉泰姆

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